900879919 has 2 divisors, whose sum is σ = 900879920. Its totient is φ = 900879918.

The previous prime is 900879911. The next prime is 900879949. The reversal of 900879919 is 919978009.

It is a weak prime.

It is an emirp because it is prime and its reverse (919978009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 900879919 - 2³ = 900879911 is a prime.

It is a super-2 number, since 2×900879919² = 1623169256914893122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900879911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450439959 + 450439960.

It is an arithmetic number, because the mean of its divisors is an integer number (450439960).

Almost surely, 2^900879919 is an apocalyptic number.

900879919 is a deficient number, since it is larger than the sum of its proper divisors (1).

900879919 is an equidigital number, since it uses as much as digits as its factorization.

900879919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 52.

The square root of 900879919 is about 30014.6617338927. The cubic root of 900879919 is about 965.8039311754.

The spelling of 900879919 in words is "nine hundred million, eight hundred seventy-nine thousand, nine hundred nineteen".